If the issue is with MYOB Earnings via API import, please contact MYOB support to fix on their end.
See below message from MYOB support-
Thanks for reaching out. Looking at the notes left by the agent who spoke with your client it seems the balance sheet inside the MYOB software was checked and is correct. This means that there will be some incorrect data inside their company file which will only return incorrect values via the API. To have this corrected, a backup of the company file will need to be sent to our Datafile Repair Team so they can investigate the issue. They will then work out a fix and apply it to the backup and send it back to be checked. Once the client is happy with the fix, the Datafile repair team and the client arrange a time between themselves to have the fix applied to the live file.